LMK04803BISQE/NOPB Texas Instruments Integrated Circuit (Quad Flat No-Lead) In Stock
The LMK04803BISQE/NOPB is a low-noise clock jitter cleaner from Texas Instruments featuring dual cascaded PLLs and an integrated 1.9 GHz VCO. It supports output frequencies up to 2030 MHz with a 20.5 MHz reference input and is housed in a 64-pin QFN package with RoHS-compliant e3 rating. Available in lead-free packaging with worldwide distribution.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat No-Lead
- Pin Count
- 64
- Lifecycle
- ACTIVE
- Datasheet
- LMK04803BISQE/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $12.7500(MOQ 11)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LMK04803BISQE/NOPB?
- Dual cascaded PLL architecture with integrated 1.9 GHz VCO enables ultra-low jitter clock synthesis up to 2030 MHz
- Supports 20.5 MHz primary reference input frequency with sub-picosecond RMS jitter cleaning for precision timing systems
- 64-pin thin QFN package (S-XQCC-N64) with exposed heat slug enables high-density PCB integration with excellent thermal management
What is LMK04803BISQE/NOPB used for?
The LMK04803BISQE/NOPB is designed for high-frequency communication and data converter systems requiring ultra-low jitter clocking, such as line cards in telecom infrastructure, FPGA clocking networks, and high-speed ADC/DAC reference generation. Its dual cascaded PLL topology makes it ideal for SONET/SDH and Ethernet equipment where jitter cleaning of noisy reference signals up to 2030 MHz output is critical. It is also used in test and measurement instruments where precise, low-phase-noise clock generation directly impacts system accuracy.
What are the specifications of LMK04803BISQE/NOPB?
| Pbfree Code | Yes |
| YTEOL | 15 |
| JESD-30 Code | S-XQCC-N64 |
| JESD-609 Code | e3 |
| Output Clock Frequency-Max | 2030MHz |
| Package Body Material | UNSPECIFIED |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Primary Clock/Crystal Frequency-Nom | 20.5MHz |
| Supply Current-Max | 590mA |
| Supply Voltage-Max | 3.45V |
| Supply Voltage-Min | 3.15V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| uPs/uCs/Peripheral ICs Type | CLOCK GENERATOR, OTHER |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the LMK04803BISQE/NOPB datasheet?
LMK04803BISQE/NOPB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LMK04803BISQE/NOPB?
Compatible alternatives and drop-in replacements for LMK04803BISQE/NOPB:
Frequently Asked Questions
What is the maximum output clock frequency supported by the LMK04803BISQE/NOPB, and which applications require this range?
The LMK04803BISQE/NOPB supports output clock frequencies up to 2030 MHz, enabling it to directly clock high-speed ADCs, FPGAs, and serializer/deserializer interfaces in 10 GbE and telecom line-card designs. The integrated 1.9 GHz VCO eliminates the need for an external oscillator at these frequencies, reducing BOM count.
How does the dual cascaded PLL architecture of the LMK04803BISQE/NOPB reduce phase noise compared to a single-loop design?
By chaining two PLLs, the first loop locks to a 20.5 MHz reference and attenuates reference spurs, while the second loop further filters in-band phase noise from the VCO. This cascade reduces integrated RMS jitter to sub-picosecond levels, which is a critical requirement in SONET/SDH and high-speed data converter applications.
What thermal handling does the 64-pin QFN package of the LMK04803BISQE/NOPB provide for power-dense designs?
The 64-pin thin QFN (S-XQCC-N64) includes an exposed metal heat slug on the bottom, which connects directly to the PCB ground plane and allows efficient thermal dissipation. The package is rated for a peak reflow temperature of 260°C, confirming compatibility with standard lead-free solder profiles used in industrial and telecom assemblies.
Is the LMK04803BISQE/NOPB suitable for designs subject to RoHS compliance requirements?
Yes, the JESD-609 e3 code on the LMK04803BISQE/NOPB confirms it is a lead-free, RoHS-compliant device with a peak reflow temperature of 260°C. The /NOPB suffix explicitly denotes no lead (no Pb) in the finish, making it appropriate for end-products sold in the EU and other markets requiring RoHS Directive compliance.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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| 500+ | $14.3500 | $7175.00 |
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